Speaker Volume Control, 114 | Multi-Tech Systems BL-Series guide

MultiModemBL User Guide

1932 Series:
19200 bps Operation	=	Switch #13 UP and Switch #14 UP
14400 bps Operation	=	Switch #13 DN and Switch #14 UP
9600 bps Operation	=	Switch #13 UP and Switch #14 DN
2400 bps Operation	=	Switch #13 DN and Switch #14 DN
Factory Default Setting	=	Switch #13 UP and Switch #14 UP
1432 Series:
14400 bps Operation	=	Switch #13 UP and Switch #14 UP
9600 bps Operation	=	Switch #13 DN and Switch #14 UP
4800 bps Operation	=	Switch #13 UP and Switch #14 DN
2400 bps Operation	=	Switch #13 DN and Switch #14 DN
Factory Default Setting	=	Switch #13 UP and Switch #14 UP

Switch #15

Carrier Detect/DSR Forcing -- "DSR"

(Asynchronous/Synchronous Mode/Dial-Up/Leased Line)

Some terminals react in unusual ways to the toggling of the Carrier Detect (CD - RS-232C/V.24 pin

6)signals. The most common symptom is that the modem does not respond to commands, or does not echo characters. In these cases, it is advisable to force these two signals On in order for the terminal to communicate properly with the modem in Command mode. This is done by setting DIP- Switch #15 DOWN. With DIP-Switch #15 in the UP position, both CD and DSR will be either on or off, depending on the On-Line status.

CD and DSR normal CD and DSR forced On Factory Default Setting

=Switch #15 UP

=Switch #15 DOWN

=UP

Switch #16

2 Wire/4 Wire Operation

(Asynchronous/Synchronous Mode)

The modem works over either 2-wire or 4-wire leased lines. To select 4-wire operation, place Switch #16 DOWN (Default); and to select 2-wire operation, place Switch #16 UP.

2-Wire Leased Line	=	Switch #16 UP
4-Wire Leased Line	=	Switch #16 DOWN
Factory Default Setting	=	DOWN

9.3Speaker Volume Control

You can adjust the volume of the modem’s phone-line monitor speaker with a volume control knob, located on the back of the modem next to the RS-232C connector (see Figure 9-1 for location). Turn the knob clockwise to increase the modem's volume and counterclockwise to decrease speaker volume. See Speaker Control Command (M) in Section 5.4.6.

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Multi-Tech Systems BL-Series manual Speaker Volume Control, MultiModemBL User Guide Series, 114

Contents

User Guide User Guide Record of Revisions Contents Manual Dial and Automatic Answer Command ModeCallback Security and Remote Configuration Registers Warranty, Service and Tech Support Modem TestingDIP-Switch Settings AppendixesPage Introduction and Description How To Use This Manual Introduction Testing Your Modem AT Command Mode OperationCallback and Remote Configuration DIP-Switches Modem Features 1 2834 Series Features2 1932 Series Features 3 1432 Series Features Fax Features Technical Specifications Command Buffer Mode of OperationIntelligent Features Introduction and Description Carrier Frequencies Fax Carrier FrequenciesLease Line Restoral Carrier Frequencies 300 bps Bell Standard Indicators ConnectorsDiagnostics Operating Temperature Power Modem LED IndicatorsModels Only Controls on PC Board MultiModemBL User Guide Installation and Connection What is in Your Modem Package? Unpacking MT2834BL shown Installation Safety WarningsInstallation Procedure MultiModemBL/BLI Connections Cabling Procedure MT1432BLK and MT2834BLK MultiModemBLK Connections Loading Trio DataFAX Software Installation and Connection Is Your Modem Ready for Use? Software Configuration and Modem Basics Serial Port Limitations How Can You Identify Your Uart Type? Software Configuration Configuring Your SoftwareConfiguring Software for Your Modem 16550 Uart and Windows Changing Default Parameters PC Initialization StringsOther Parameters Macintosh Initialization Configuring Software for Your ComputerConfiguring Software for the Remote System Terminal Emulation File Transfer Protocols When to Disable Data CompressionDisabling Error Correction AT &F S0=0 X4 &E14 M Answer/Originate Voice/Data Toggle Switch Modem BasicsSimple Operations MultiModemBL User Guide Manual Dial and Automatic Answer Dialing/On-Line/Answering Automatic Leased Line Restoral Operation Manual Dial Backup Call TerminationDial Backup and Leased Line Restoral Manual Dial and Automatic Answer Dial-Up Operation Manual Call Origination Automatic Answering Manual Answering Abort Timer Handshaking DetailsCall Termination Command Mode AT Command Editing Command Mode Functional Modes Summary of AT Commands Reliable Mode Normal ModeAuto-Reliable Mode Flow Control Disabled Passwords for Callback Phone Numbers Enable/Disable Reading Line Probe From DSP during handshakeDisplay of Signal Strength Information Callback Security Enable/Disable Result Codes Multi-Tech Result Codes Series MultiModemBL User Guide Standard AT Result Codes Series Continuous Redial not used in BLI/BLK a or Dialing Commands Dialing Action CommandsDial Command D Dialing a Stored Number N Pulse or Tone Dial P T Dial Modifier CommandsVoice/Data Dialing $VD Set Pulse Dial Ratios &P Not used in BLK Automatic Pauses in Dialing Return to Command Mode After Dial Command ExecutionReverse the Mode of Operation R Long Space Disconnect Y Calling Card Detect Tones $ Quiet Answer @ Number Linking NN Phone Number Memory CommandsStoring Phone Numbers D...N Listing Numbers Stored in Memory L Configuration and Default Storage Commands Loading Factory Defaults &FModem Reset Z Async/Sync Mode Switching &M Unix Uucp Spoofing $SPSynchronous Transmit Clock Select &X Result Codes Enable/Disable and No Response Answer Q Command Response Result Code CommandsEcho Command Mode Characters E Result Codes Multi-Tech or Standard AT &Q Result Codes Basic and Extended and Call Progress Selection Guard Tones Not Used in BLI or BLK Models &G Phone Line Conditioning CommandsEnable/Disable Trelis Coded Modulation #T Bell/V.21 Tone Not Used in BLK Models B Fallback Modes When On-Line #F Enable/Disable Lowspeed Fast Connect $FC 2834 Series onlyCleardown at Disconnect &CD 2834 Series only Auto Speed Detect #A Data Terminal Ready Control &D 7 RS-232C Interface Control CommandsCarrier Detect Control &C CTS Control &R Data Set Ready Control &S CTS/RTS Interaction Control &RFDSR/CD Interaction Control &SF Auto-Reliable Mode &E1 Error Correction CommandsNormal Mode &E0 Reliable Mode &E2 Answer Mode Mode Select #LOriginate Mode Auto-Reliable Buffering $A Enable/Disable Auto Reliable Fallback Character $F Error Correction/300bps $ERetransmit Count $R Xon/Xoff Flow Control &E5 Flow Control CommandsHardware Flow Control &E4 Modem-Initiated Flow Control Xon/Xoff Pass-Through &E7 Send Xon/Xoff Characters #XHewlett-Packard ENQ/ACK Pacing &E9 Maximum Block Size &BS Normal Mode Modem Flow Control On &E11Terminal/Computer Initiated Pacing &E13 Parity Selection #P Normal/Auto-Reliable/Reliable Mode Commands Xon/Xoff Pass-Through CommandsEnq/Ack Pacing Commands Speed Conversion Commands Speed Conversion $BAModem Baud Rate $MB Command Mode Series Serial Port Baud Rate $SB Immediate Action Commands Listing On-Line Diagnostics L8 Off Hook H Line Probe Commands 2834 Series only Force Answer Mode aExiting Command Mode, Going Back On-Line O MultiModemBL User Guide Registers Escape Code Character Number of Rings Until Modem AnswersRings Which Have Occurred Return Character Backspace Character Time for Carrier Abort TimerLine Feed Character Wait Time for Dial Tone Carrier Detect Response Time S10 Carrier Loss Disconnect Delay TimeS13 Remote Configuration Escape Character S11 Tone Dialing Tone Spacing and Duration S16 Callback Attempts S15 Callback Time DelayS19 Dial-Back Timer S17 Changing Break Time S24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S26 Failed Password AttemptsS29 Local Inactivity Timer S25 DTR Dropout Time S36 Time Between DTR Inactive and Modem Off-Hook S30 Inactivity TimerS32 Time Elapse for Escape Sequence S37 Time Between DTR Active and Modem On-Hook S48 Program V.34bis Connect Speeds 2834 Series only Reading and Assigning S-Register Values Examples of Assigning ValuesExamples of Reading Values AT Command and S-Register Summary Callback Security and Remote Configuration Callback Feature Description Remote Configuration Description Callback Security and Remote ConfigurationTo change your Remote Configuration feature status To set parity of the password/message prompt AT#CBN0xxxxxxxxxxCRAT#CBN1xxxxxxxxxxCR Callback Operational Sequence Procedures Remote Configuration Procedures Remote Configuration Operation Procedures StepProcedure Callback Security Enable/Disable Remote Configuration and Callback Security AT CommandsAssign Passwords for Callback Phone Numbers #CBN Change Login Password Erase Callback Password Erase Callback Phone Number #RDNxx Remote Configuration/Callback Security S-Registers MultiModemBL User Guide Modem Testing Introduction Modem Testing Local Analog Loopback Test/V.54 Loop Digital Loopback Test/V.54 Loop 2 Local/Manual 100 Digital Loopback Test/V.54 Loop 2 Remote/Automatic 101 Back-to-Back Test 4A. Back-to-Back Test Cabling Synchronous Mode Testing Local Analog Loopback Test Synchronous Mode Digital Loopback Test Local/Manual Synchronous Mode Synchronous Mode Digital Loopback Test local/manual 104 Digital Loopback Test Remote/Automatic Synchronous Mode Synchronous Mode Digital Loopback Test remote/automatic 105 MultiModemBL User Guide 106 DIP-Switch Settings PC Board BL models 108 DIP-Switch Option Settings DIP-Switch Settings109 Switch #4 AS/400 Mode Synchronous Mode/Leased Line/Dial-UP 1432 Series110 111 112 113 Speaker Volume Control MultiModemBL User Guide Series114 Recording Option Configurations Switch Function Position Effect115 DIP Switches #13-14 DIP Switches #15-16116 Warranty, Service and Tech Support Limited Warranty On-line Warranty Registration118 Tech Support ServiceWarranty, Service and Tech Support Recording Modem Information Multi-Tech BBS To log on to the Multi-Tech BBSTo Download a file Upgrading the MultiModem Using FlashPro to Upgrade Modem FirmwareAbout the Multi-Tech Fax-Back Service About Multi-Tech’s Internet Presence About Ordering Accessories SupplyNet Online Ordering Instructions122 Appendixes Modem Does Not Respond to Commands Appendix a TroubleshootingNone of the LEDs Light When the Modem Is On 124 Appendix a Troubleshooting 125 Modem Dials But Cannot Make a Connection 126 File Transfer Is Slower Than It Should Be Modem Cannot Connect When AnsweringModem Disconnects While On-line 127 Am Losing Data Am Getting Garbage Characters on the Monitor128 Appendix B Ascii Conversion Chart 129 Tone Dial Frequencies Appendix C Dial Pulse and Tone-Dial FrequenciesDial Pulses 130 $An Appendix D AT Command SummaryCommand Values Description #An CD n BS n$BA n SN d $FCn $EBn#Fn $Fn #Ln $HnL10 $MBn RFn NdNe$Rn Sr=n $SPn $SBnSFn #Tn #Xn +++ATCR137 Callback Security/Remote Configuration Command Summary Password Command Summary 25bis Commands Appendix E DIP-Switch Summary Asynchronous Mode140 Synchronous Mode Appendix E DIP-Switch Summary141 142 Appendix F S-Register Summary S26 S24S25 S29 Terse Digit Verbose Words Effect Appendix G Result Code SummaryAppendix G Result Code Summary 145 146 25bis Operation Delayed and Forbidden NumbersAppendix H V.25bis Operation Appendix H V.25bis Operation 25bis DIP-Switches 25bis Set-Up and Initialization148 25bis Mode AT Commands 25bis Responses Result Codes149 Change Serial Baud Rate CSP Command 25bis AT CommandsEnable/Disable V.25bis Mode $V Command Dial Phone Number Provided CRN Command Disregard or Connect to Incoming Calls DIC or CIC Command Listing Delayed Phone Numbers RLD CommandListing Forbidden Phone Number RLF Command DTR Dialing $D Command Switzerland ITU V.25bis Country Specific InformationItaly Austria Singapore Appendix H V.25bis Operation FranceBelgium 153 Appendix I MultiModemBL Cables Figure I-1. RS232 Cable IBM PC Appendix J RS-232C Interface Specifications Figure I-4. MAC Cable 155 Pin Designation Eia Appendix J RS-232C Interface SpecificationsSignal Function Assignment Circuit Source 156 Request To Send Pin 4, RTS CA Signal Ground Pin 7, SG ABReceived Data Pin 3, RD BB Clear To Send Pin 5, CTS CB Transmit Clock Pin 15, TC DB Ring Indicator Pin 22, RI CETest Voltage Pin 9 Receive Clock Pin 17, RC DD Terminal Busy Out of Service Pin 25, OOS External Transmit Clock Pin 24, XTC159 160 European Directives User Guide Statement EMC, Safety and Terminal Directive ComplianceCompliance with European Community Requirements Appendix K Regulatory Information International Modem Restrictions New Zealand Telecom Warning Notice162 FCC Regulations for Telephone Line Interconnection 163 FCC Part Canadian Limitations NoticeClass a Statement Industry Canada Index 165 Functional Description of RS232C SIG 166 167 168 XON/XOFF